(-2,5) and (4,5) find the equation of the line through​

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?